Henry g-oss



HENRY Goss, f or UNLIoN MILLS, 'PENNsYLvNia Letters Patent No. 71,380, dated November 26, 1867.A

eEMENT srovEfHPn THIMBLE tlgr tlgrmlt refont tu tu that Enters @tout :mh making ont rf the tutti. I

'IO ALL WHOM IT MAY GONGERN:

Be it known that I, HENRY Gos-5,01' Union Mills, in the` county of Erie, and State of Pennsylvania, have i invented a certain new and improved Stove-Pipe lhimble; and I do hereby declarelthat the following is atfpll 1 and exact description thereof, reference being had to the accompanying drawings, making a part of` this speci-` ,p

fication, in which- Figure I is a vertical section of my improved thimble when applied to floors.

Figure II is a bottom plan view of the same. Figure III is a vertical section of myjmproveinent when applied to walls.

The nature of this invention consists lin making a composition or cement stove-pipe thimble cast in a. permanent mould or frame, as a. new article of` manufacture.

Letters of'lke name and kind refer to like parts in each of the gures.

A represents a stove-pipe thimble, made of cement, or other equivalent compositiomwhich isa non-conductor i oi' heat. By preference I use a mixture of two parts of sand, two parts of refined `stucco or plaster of Paris, one part iof quicklime, and enough water to reduce the whole to a proper consistency for casting in a-mould. i B represents a rectangular frame or box, which is made of wood, open at the top and bottom, and two sides hof" which project beyond the ends of the box, as shown at b. These projecting'anges are for the purposeof eonnectingtbe box firmly to the framework of a building, as shown by the screw or nail-holes b2, Figs'I and` p III. The inner sides ofthe box are made inclined,so that thetop of the `box or frame is largerthan its bottom.

When the frame and thimble are secured between the joists of a floor, the cement-thimble will not be liable to` p bedisengagedY from the box by any weight that may rest upon its surface, but will wedge in to the inclined sides` of the box the tighter the greater the wcightis upon it. The inner sides of the bei:` or fraineB are also provided with holes, or notches, or projections, of' any desired shape, into which or around which, the cement will form,

while being cast, and, when hard, will be firmly held thereby within the frame. This mode of fasteuingis` t represented lat4 C.

When the box is constructed as above described, and the compositioniready for casting, the box is placed upon t a' temporary bottom, in which may be carved any desired ornamental design. The cement, being poured intothclbox, will fill up all the corners, crevices, or holes formed in the box. The top is then levelled with a trowel, the cement being allowed to project above the edge of the box suiiicient to bring it level with tbeiiooring. The

, projecting part of the cement is made smaller in circumference, as shown ut d, so that the iooring may lap over i 'the cement, forming a tight joint. The cement should also project slightly below the bottom of theboxor freine,

p us shown at e, so as to be level with the lathing covering the bottom of the joists. t p

When my improved thimble is used in'walls orV partitions, its form and general constructionmay be thesame, ,i

but the ornamental design should be formed upon both sides-of the box, as shown i-nFig. III, and it is'unnecessary to make the inside of the box inclined or converging, there being no strain upon the cement from'either side. 'Ihe permanent mould or box B need not be used in every case. Where cheapness of construction is` an object, a temporary mouldmay be formed between the joists of a oor or standards `cfa-wn.ll,'whicl1, as soon as the coment has hardened sniiiciently to be self-sustain'ing, may be removed. p

In places where the stove-pipe is often taken out, replaced,` or changed, I prefer to fprovide the central opening through the cement with a. lining of zinc or sheet iron for protection.

The cement in time becomes as hard as stone, and being a non-conductor of heat is fire-proof, and therefore4 admirably adapted to the purpose for which it is intended.

What I claim as my invention, and desire to secure by Letters Patent, is-

A composition or cement stove-pipe thimble, vA, east in a permanent mould or frame, B,-as `a new article of i manufacture, substantially as described. 4

i HENRY GOSS.

Witnesses:

B. H. MUEBLE, EDW. WILHELM. 

